Lubricant composition containing an antiwear agent
AssigneeThe Lubrizol Corporation
InventorsDaniel J. Saccomando, William R. S. Barton, Ewan E. Delbridge, Shawn Dickess
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Abstract
The invention provides a lubricant composition comprising an oil of lubricating viscosity and a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-)amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.
Claims22
A lubricant composition comprising:
- (a) an oil of lubricating viscosity;
- (b) a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-) amino(thio)ester, wherein the amino group is separated from the ester group by a chain of at least 3 carbon atoms;
- and
- (c) a thiadiazole.
A method of improving seals compatibility of a lubricant composition comprising adding to said lubricant composition a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-) amino(thio)ester, wherein the amino group is separated from the ester group by a chain of at least 3 carbon atoms.
A method of improving corrosion inhibition of a lubricant composition comprising adding to said lubricant composition a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-) amino(thio)ester, wherein the amino group is separated from the ester group by a chain of at least 3 carbon atoms.
A method of improving antiwear performance of a lubricant composition comprising adding to said lubricant composition a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-) amino(thio)ester, wherein the amino group is separated from the ester group by a chain of at least 3 carbon atoms.
Dependencies are inferred from the claim text.